Drying kinetics and quality dynamics of ultrasound-assisted dried selenium-enriched germinated black rice

Rashid, Muhammad Tayyab; Liu, Kunlun; Wei, Deng-Zhong; Jatoi, Mushtaque Ahmed; Li, Qingyun; Sarpong, Frederick

doi:10.1016/j.ultsonch.2023.106468

Cited by 5 publications

(2 citation statements)

References 76 publications

(100 reference statements)

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“…En la velocidad de secado constante se debe tomar en cuenta las condiciones de secado que va a someterse los granos como la temperatura y la velocidad de aire, controlando la evaporación de la humedad mediante la utilización de equipos específicos que demuestren dicho manejo, sin embargo, el proceso de secado incluye la alteración de la transferencia de calor y masa a medida que se evapora por aire caliente realizando cambios en su velocidad de seca do vs el tiempo de secado, debido a que mientras mayor cantidad de tiempo pase la humedad de los granos disminuirá considerablemente hasta volverla constate 17 , 18 . Por tanto, en la Fig.…”

Section: Figura 1 Cinética De Secado a 104°c Modelo De Henderson Y Pabisunclassified

Estudio de la cinética de secado del maíz suave (Zea mays L) variedad Guagal (INIAP 111)

García-Culqui,

Guevara-Narváez,

Verdezoto-Mendoza

et al. 2023

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El objetivo fue determinar la cinética de secado del maíz (Zea mays L), variedad Guagal mejorado. Se realizaron con tres muestras de materia prima a temperaturas no controladas entre 60 °C – 80 °C durante 12 horas, seguido por el proceso de cinética de secado en una estufa a 104°C durante 24 horas. Las muestras iniciaron con pesos de 8.09 g; 10.02 g; 11.16 g respectivamente con una humedad inicial de 22.13 % y se obtuvo una humedad final de 0,53 %; 0,7 %; 0,61 %. Las variables medidas incluyeron la humedad en base seca, total y en equilibrio, el flujo de calor, la cantidad y la eficiencia de calor, y la velocidad de secado. Se determinó que la velocidad de secado a mayores temperaturas favorece a la transferencia de masa y energía. Se estableció que el modelo de Henderson y Pabis fue el que mejor se adaptó a los datos experimentales obtenidos en el proceso de cinética de secado a 104°C por 24 horas R2 = 99,798%; mientras que el modelo de Page fue el que mejor se adaptó a los datos obtenidos durante la deshidratación a 60-80°C durante 12 horas R2 = 99,881 %. Esto sugiere que se pueden obtener mejores resultados de secado y deshidratación con la variedad de maíz INIAP 111 Guagal mejorado si se considera el establecimiento de la temperatura adecuada y el tiempo de procesamiento. Palabras clave: Cinética, secado, maíz, modelo matemático, harina de maíz.

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Section: Figura 1 Cinética De Secado a 104°c Modelo De Henderson Y Pabisunclassified

Estudio de la cinética de secado del maíz suave (Zea mays L) variedad Guagal (INIAP 111)

García-Culqui,

Guevara-Narváez,

Verdezoto-Mendoza

et al. 2023

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“…There are various methods currently employed to enhance the permeability of wood, including physical methods such as steam treatment and microwave treatment, chemical methods like alkali treatment, and biological methods such as fungi and bacterial treatment (Guo et al 2014;Jacobs-Young et al 1998;Mascarenhas et al 2021;Todd et al 2000;Zhen et al 2013). In recent years, ultrasound technology, considered as a green technology, involves cavitation, mechanical, and thermal effects has been increasingly utilized to accelerate drying process (Pandiselvam et al 2023;Rashid et al 2023). In essence, the drying rate of the material is increased by increasing the permeability under ultrasound-assisted treatment.…”

Section: Dimensional Stability 1 Introductionmentioning

confidence: 99%

Effect of ultrasound-assisted pretreatment on the hygroscopic dimensional stability of Ailanthus altissima wood modified with 1,3-dimethylol-4,5-dihydroxy ethylene urea

Han,

Gao,

et al. 2023

Preprint

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Fast-growingwood is particularly favored as the lightweight material and has potential used in construction and furniture. However, dimensional instability, one of fast-growing wood’s inherent weaknesses, limits its utilization as solid wood products. In this study, fast-growing Ailanthus altissimawood was modified with 1,3-dimethylol-4,5-dihydroxy ethylene urea (DMDHEU) after ultrasound-assisted pretreatment to improve its hygroscopic dimensional stability. Ultrasound was first used in combination with DMDHEU for wood impregnation modification. The weight percentage gain (WPG), absolute dry density, tangential/radial swelling rates, resin distribution and functional groups of chemical components were investigated. The results indicated that the WPG and absolute dry density of DMDHEU-ultrasonic samples increased compared to DMDHEU-untreated samples. The hygroscopic dimensional stability of DMDHEU-ultrasonic samples improved to varying degrees compared to DMDHEU-untreated samples. In particular, the tangential/radial swelling rates of DMDHEU-ultrasonic-4% NaOH samples decreased from 2.01%/1.22% for untreated samples to 0.55%/0.38%. On the one hand, ultrasound-assisted pretreatment affected the distribution of resin inside vessel. Raised-membranous resin appeared along the vessel of DMDHEU-ultrasonic-4% NaOH samples, while only sporadic resin deposition was observed for the DMDHEU-untreated samples. On the other hand, ultrasound-assisted pretreatment promoted better penetration of the DMDHEU resin into the wood cell wall, and the hydroxyl groups in the hydrophilic part were converted into hydrophobic ester bonds and ether bonds. In conclusion, ultrasound-assisted pretreatment had a positive effect on the wood DMDHEU impregnation. And these findings shed light on promising pretreatment methods for wood dimensional stability modification.

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Drying kinetics and energy efficiency of Y2O3–CeO2 co-doped ZrO2 powder under microwave heating

Liu,

Ren,

Zhou

et al. 2024

Ceramics International

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Drying kinetics and quality dynamics of ultrasound-assisted dried selenium-enriched germinated black rice

Cited by 5 publications

References 76 publications

Estudio de la cinética de secado del maíz suave (Zea mays L) variedad Guagal (INIAP 111)

Estudio de la cinética de secado del maíz suave (Zea mays L) variedad Guagal (INIAP 111)

Effect of ultrasound-assisted pretreatment on the hygroscopic dimensional stability of Ailanthus altissima wood modified with 1,3-dimethylol-4,5-dihydroxy ethylene urea

Drying kinetics and energy efficiency of Y2O3–CeO2 co-doped ZrO2 powder under microwave heating

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